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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Yang, Bo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Multi-modal fusion and feature enhancement U-Net coupling with stem cell niches proximity estimation for voxel-wise GBM recurrence prediction citations
- 2023Development and evaluation of conductive ultra-lightweight cementitious composites for smart and sustainable infrastructure applicationscitations
- 2023Shear performance of lightweight SCC composite beam internally reinforced with CFRP laminate stirrups and GFRP barscitations
- 2023Influence of crumbed rubber inclusion on spalling, microstructure, and mechanical behaviour of UHPC exposed to elevated temperaturescitations
- 2023Shear strengthening performance of fiber reinforced lightweight SCC beamscitations
- 2023Experimental investigation on the structural behaviour of novel non-metallic pultruded circular tubular GFRP T-joints under axial compressioncitations
- 2022Mechanical properties and chloride penetration resistances of very-low-C3A cement based SC-UHP-SFRCs incorporating metakaolin and slagcitations
- 2022Experimental Database on pullout bond performance of steel fiber embedded in ultra-high-strength concretecitations
- 2022Effects of aggregate type, aggregate pretreatment method, supplementary cementitious materials, and macro fibers on fresh and hardened properties of high-strength all-lightweight self-compacting concretecitations
- 2022Investigation on the structural failure behaviour of pultruded circular tubular GFRP multiplanar truss bridges with non-metallic connections through finite element modellingcitations
- 2021High strength flowable lightweight concrete incorporating low C3A cement, silica fume, stalite and macro-polyfelin polymer fibrescitations
- 2019Finite element simulation of circular short CFDST columns under axial compressioncitations
- 2018Experimental tests and design of rubberised concrete-filled double skin circular tubular short columnscitations
- 2018Experimental investigation of rubberised concrete-filled double skin square tubular columns under axial compressioncitations
- 2017Monitoring the on-surface synthesis of graphene nanoribbons by mass spectrometrycitations
- 2016Structural instabilities during cyclic loading of ultrafine-grained copper studied with micro bending experiments
- 2016On-surface synthesis of graphene nanoribbons with zigzag edge topologycitations
- 2014Mechanistic Study of 1,3-Butadiene Formation in Acetylene Hydrogenation over the Pd-Based Catalysts Using Density Functional Calculationscitations
- 2013Influence of surface structures, subsurface carbon and hydrogen, and surface alloying on the activity and selectivity of acetylene hydrogenation on Pd surfaces:A density functional theory studycitations
- 2013Influence of surface structures, subsurface carbon and hydrogen, and surface alloying on the activity and selectivity of acetylene hydrogenation on Pd surfaces: A density functional theory studycitations
Places of action
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article
Development and evaluation of conductive ultra-lightweight cementitious composites for smart and sustainable infrastructure applications
Abstract
<p>The stability of electrical conductivity of self-sensing cementitious composites under different environments is the key to the application of structural health monitoring using electrical resistivity/impedance tomography. In addition, the lightweight of concrete is becoming a new requirement for sustainable development. This study aims to develop long carbon fibre (LCF) reinforced ultra-lightweight cementitious composites (ULCC) to address these issues. The mechanical properties and electrical and thermal conductivities of composites were investigated. The conductivity of LCF-reinforced ULCC under different testing methods (AC and DC), frequencies, temperatures, water content in the mixture, and curing ages were examined. The electromechanical properties of LCF-reinforced ULCC under compression (monotonic, cyclic loading under different loading peaks and loading rates) and tension were also tested. Except for the content, the effects of the pre-heating treatment of carbon fibre on the conductivity and electromechanical properties were compared. The experimental results revealed that LCF can remove the polarization effect and maintain the stability of the electrical conductivity of LCF-ULCC under different environments. The LCF can build a complete and continuously 3D conductive pathway, and free electrons can transport stably in the matrix, which can diminish the effect of electrolytic ions on the conductivity. The LCF-reinforced ULCC can show sensitive electromechanical ability where LCF is better used for self-sensing under tension when compared with compression. The conductivity of composites increases with increasing LCF content but initially increases and then decreases with increasing the pretreatment heating temperature of LCF. It is efficient to increase the conductivity and mechanical properties of composites by heating LCF to 300 °C. The composites (Oven-dry density: 990–1100 kg/m<sup>3</sup>) are a good thermal insulation material and the thermal conductivity is between 0.35 and 0.45 W/mK. Finally, microstructural analysis was conducted and the mechanisms of the improved electrical conductivity and thermal insulation of the composites were discussed.</p>